[dpdk-dev] [PATCH v3 2/5] igb: Config VM offload register

[Ouyang Changchun]

Config VM offload register in igb PMD to enable it 
receive broadcast and multicast packets.

Signed-off-by: Changchun Ouyang <changchun.ouyang at intel.com>
---
 lib/librte_pmd_e1000/igb_rxtx.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/lib/librte_pmd_e1000/igb_rxtx.c b/lib/librte_pmd_e1000/igb_rxtx.c
index f09c525..0dca7b7 100644
--- a/lib/librte_pmd_e1000/igb_rxtx.c
+++ b/lib/librte_pmd_e1000/igb_rxtx.c
@@ -1779,6 +1779,26 @@ igb_vmdq_rx_hw_configure(struct rte_eth_dev *dev)
        vt_ctl |= E1000_VT_CTL_IGNORE_MAC;
        E1000_WRITE_REG(hw, E1000_VT_CTL, vt_ctl);

+       for (i = 0; i < E1000_VMOLR_SIZE; i++) {
+               vmolr = E1000_READ_REG(hw, E1000_VMOLR(i));
+               vmolr &= ~(E1000_VMOLR_AUPE | E1000_VMOLR_ROMPE |
+                       E1000_VMOLR_ROPE | E1000_VMOLR_BAM |
+                       E1000_VMOLR_MPME);
+
+               if (cfg->rx_mode & ETH_VMDQ_ACCEPT_UNTAG)
+                       vmolr |= E1000_VMOLR_AUPE;
+               if (cfg->rx_mode & ETH_VMDQ_ACCEPT_HASH_MC)
+                       vmolr |= E1000_VMOLR_ROMPE;
+               if (cfg->rx_mode & ETH_VMDQ_ACCEPT_HASH_UC)
+                       vmolr |= E1000_VMOLR_ROPE;
+               if (cfg->rx_mode & ETH_VMDQ_ACCEPT_BROADCAST)
+                       vmolr |= E1000_VMOLR_BAM;
+               if (cfg->rx_mode & ETH_VMDQ_ACCEPT_MULTICAST)
+                       vmolr |= E1000_VMOLR_MPME;
+
+               E1000_WRITE_REG(hw, E1000_VMOLR(i), vmolr);
+       }
+
        /*
         * VMOLR: set STRVLAN as 1 if IGMAC in VTCTL is set as 1
         * Both 82576 and 82580 support it
-- 
1.8.4.2